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Catalyzed Hydrogenation of Nitrogen and Ethylene on Metal (Fe, Pt) Single Crystal Surfaces and Effects of Coadsorption: A Sum Frequency Generation Vibrational Spectroscopy Study.

DE2005838077

Publication Date	2004
Personal Author	Westerberg, S. P. G.
Page Count	124
Abstract	High-pressure catalytic reactions and associated processes, such as adsorption have been studied on a molecular level on single crystal surfaces. Sum Frequency Generation (SFG) vibrational spectroscopy together with Auger Electron Spectroscopy (AES), Temperature Programmed Desorption (TPD) and Gas Chromatography (GC) were used to investigate the nature of species on catalytic surfaces and to measure the catalytic reaction rates. Special attention has been directed at studying high-pressure reactions and in particular, ammonia synthesis in order to identify reaction intermediates and the influence of adsorbates on the surface during reaction conditions. The adsorption of gases N(sub 2), H(sub 2), O(sub 2) and NH(sub 3) that play a role in ammonia synthesis have been studied on the Fe(111) crystal surface by sum frequency generation vibrational spectroscopy using an integrated Ultra-High Vacuum (UHV)/high-pressure system.
Keywords	Hydrogenation Catalysis Metals Adsorption Ammonia Nitrogen Ethylene Surfaces Auger electron spectroscopy Desorption Gas chromatography Monocrystals Reaction kinetics Synthesis Chemical reactions
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Lawrence Berkeley National Lab., CA.; Royal Inst. of Tech., Stockholm (Sweden).; Department of Energy, Washington, DC.
Supplemental Notes	Prepared in cooperation with Royal Inst. of Tech., Stockholm (Sweden). Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
Title Note	Doctoral thesis.
NTIS Issue Number	200601

Catalyzed Hydrogenation of Nitrogen and Ethylene on Metal (Fe, Pt) Single Crystal Surfaces and Effects of Coadsorption: A Sum Frequency Generation Vibrational Spectroscopy Study.

Catalyzed Hydrogenation of Nitrogen and Ethylene on Metal (Fe, Pt) Single Crystal Surfaces and Effects of Coadsorption: A Sum Frequency Generation Vibrational Spectroscopy Study.
DE2005838077

Publication Date	2004
Personal Author	Westerberg, S. P. G.
Page Count	124
Abstract	High-pressure catalytic reactions and associated processes, such as adsorption have been studied on a molecular level on single crystal surfaces. Sum Frequency Generation (SFG) vibrational spectroscopy together with Auger Electron Spectroscopy (AES), Temperature Programmed Desorption (TPD) and Gas Chromatography (GC) were used to investigate the nature of species on catalytic surfaces and to measure the catalytic reaction rates. Special attention has been directed at studying high-pressure reactions and in particular, ammonia synthesis in order to identify reaction intermediates and the influence of adsorbates on the surface during reaction conditions. The adsorption of gases N(sub 2), H(sub 2), O(sub 2) and NH(sub 3) that play a role in ammonia synthesis have been studied on the Fe(111) crystal surface by sum frequency generation vibrational spectroscopy using an integrated Ultra-High Vacuum (UHV)/high-pressure system.
Keywords	Hydrogenation Catalysis Metals Adsorption Ammonia Nitrogen Ethylene Surfaces Auger electron spectroscopy Desorption Gas chromatography Monocrystals Reaction kinetics Synthesis Chemical reactions
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Lawrence Berkeley National Lab., CA.; Royal Inst. of Tech., Stockholm (Sweden).; Department of Energy, Washington, DC.
Supplemental Notes	Prepared in cooperation with Royal Inst. of Tech., Stockholm (Sweden). Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
Title Note	Doctoral thesis.
NTIS Issue Number	200601